I have aDell Inspiron157537with the IntelN7260dualband.
On the olddriver (16.5.0.3),the internet speedwas60Mb/ s (close to the router), in the second room(onewallon the way) 20Mb/ s.Constantlyinterruptedconnections, wirelessspeeddropped to11Mb/ s.
With the newdriver 17.0.3fromyesterdaylink isstable, butthe internet speeddroppedto20MB /s (0.5 mfrom the router) and11Mba second room
Allmy other(2PC, 4 phones, tablet, Xbox, TV) devices workwith a linkstableas a rock.
Edit: I turned off u-apsd. Now conection speed is the same, as on old drivers.